Inside-outside deburring tool and optional flycutter

Abstract

An inside-outside deburring tool and flycutter having a body provided with an internal slot in which are slidably disposed a pair of tool bit holders. Interchangeable support elements mount the holders within the slot in such a manner that the holders are adjustable within the slot either independent of or equally and oppositely with one another.

What is claimed as new is as follows: 
     
       1. An inside-outside deburring tool and flycutter, comprising, in combination: (a) a body provided with an internal cavity;   (b) a shank mounted on the body for attaching the body to a machine tool;   (c) a pair of cutting tool holders movably disposed in the cavity provided in the body; and   (d) support means associated with the body for adjustably mounting the tool holder on the body, the support means including a pair of rods each supporting a respective one of the tool holders for individual adjustment within the cavity provided in the body, and a single shaft supporting both of the tool holders for displacement dependent on one another, the pairs of rods being arrangeable with the body, shank and tool holders in a first arrangement of the elements to form an inside-outside deburring tool, and the shaft being arrangeable with the body, shank, and tool holders in a second arrangement of the elements to form a flycutter.   
     
     
       2. A structure as defined in claim 1, wherein the body has two bores disposed communicating with the cavity, with the pair of rods each being provided with external screw threads and disposed in a respective one of the bores extending into the cavity toward one another, and the tool holders each being provided with a screw threaded aperture threadingly receiving a respective one of the pair of rods. 
     
     
       3. A structure as defined in claim 2, wherein the body is a longitudinally extending member, and the cavity is a slot provided in the body and extending longitudinally thereof. 
     
     
       4. A structure as defined in claim 2, wherein the support means further includes holder means for rotatably retaining the rods against longitudinal movement in the cavity provided in the body. 
     
     
       5. A structure as defined in claim 4, wherein the body is a longitudinally extending member, and the cavity is a slot provided in the body and extending longitudinally thereof. 
     
     
       6. A structure as defined in claim 4, wherein the holder means includes three substantially U-shaped keepers, two of the keepers being substantially the same size and arrangeable retaining the rods within the cavity provided in the body, and the third of the keepers being larger than the two of the keepers and arrangeable retaining both the rods and the shaft within the cavity provided in the body, with recesses being provided in the body for receiving the keepers, each of two of the recesses being disposed in communication with a respective one of the bores for receiving a respective one of the pairs of keepers, and a further one of the recesses being disposed centrally of a longitudinal extent of the cavity for receiving the third of the keepers. 
     
     
       7. A structure as defined in claim 5, wherein the rods each have two longitudinally spaced ends and are provided with an annular groove adjacent one of the ends for registering with an associated one of the two of the recesses and receiving one of the pair of keepers, and the shaft is provided with an annular groove substantially centrally of the longitudinal extent of the shaft for registering with the further one of the recesses and receiving the third of the keepers, with the rods each having the other of the ends provided with annular trunions cooperating to form an annular groove registered with the further of the recesses for receiving the third of the keepers. 
     
     
       8. A structure as defined in claim 7, wherein the body is a longitudinally extending member, and the cavity is a slot provided in the body and extending longitudinally thereof. 
     
     
       9. A structure as defined in claim 1, wherein the body is a longitudinally extending member, and the cavity is a slot provided in the body and extending longitudinally thereof.